Color black
A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Nuts of iron or steel
NSN 5935-01-394-2172
NSN 6145-01-528-9655
NSN 6135-01-573-7164
NSN 5999-01-384-4580
NSN 6610-01-545-0766
NSN 5950-01-212-1483
NSN 6105-01-435-4376
NSN 5975-01-237-2163
NSN 5990-01-134-7756
NSN 5905-01-364-9573
NSN 5905-01-478-6957
NSN 6220-01-415-3350